* {
	padding: 0;
	margin: 0;
	color: #000;
	font-family: "微软雅黑";
}

@media only screen and (max-width:1200px) {
	header {
		width: 1200px;
	}
}

button {
	border: none;
	outline: none;
}

header {
	height: 75px;
	padding: 0 50px;
	background: #fff;
	box-shadow: 3px 0px 3px #666666;
}

header {
	z-index: 100;
	position: fixed;
	left: 0;
	right: 0;
	top: 0;
}

header a {
	color: #666;
	text-decoration: none;
	letter-spacing: 0.2rem;
}

header h1 {
	color: #666;
	font-size: 2rem;
	line-height: 75px;
	cursor: pointer;
	float: left;
}

header ul {
	list-style: none;
	float: right;
}

header ul>li {
	float: left;
	transition: all 0.1s;
	cursor: pointer;
}

header ul>li:hover {
	background: #666;
}

header ul>li>a {
	padding: 20px 20px;
	line-height: 75px;
	text-decoration: none;
	transition: all 0.1s;
}

header ul>li:hover>a {
	color: #fff;
}

header button {
	font-size: 14px;
	padding: 8px 22px;
	margin-top: 20px;
	margin-left: 50px;
	color: white;
	border: 1px solid;
	border-radius: 3px;
	border-color: #89AE00;
	background-color: #89AE00;
	cursor: pointer;
	float: right;
}

header button:hover {
	background-color: #98C005;
}